Santiago - Thank you for contemplating my issue ! BTW, the Burlington Route Historical Society just released a homage to the E5.......think you might want to acquire one! Interesting side note - - - your comment about your Santa Fe locomotives only seeing clear track in front of them - -- in the "homage", it was noted that the earlier Burlington shovel nose diesels created a problem for the locomotive crews: nystagmus, or being hypnotized by the on-rushing ties so visible from their out front perch.
Guess I will just leave well-enough alone and not tinker with my E5's front coupler. Although my stream-lined back-up Aeolus 4-6-4 was just itching to go rescue a disabled E5 out on the road !